Apparatus and method for signal processing in a handover in a BWA communication

Abstract

An apparatus and method for processing received signals in a handover of a MS in a BWA communication system including a plurality of BSs capable of providing a service to the MS. According to the method, the MS receives signals of different BSs and detects preambles for each BS from the received signals. Further, the MS measures channel quality information corresponding to each of the detected preambles and compares the measured channel quality information with a preset threshold value. Further, the MS processes the signals received from the different BSs based on a result obtained by comparing the measured channel quality information with the preset threshold value.

Description

PRIORITY [0001] This application claims priority to an application entitled “Apparatus and Method for Signal Processing in Handover in BWA Communication System” filed in the Korean Intellectual Property Office on Jun. 25, 2004 and assigned Serial No. 2004-48447, the contents of which are hereby incorporated by reference. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates generally to a Broadband Wireless Access (BWA) communication system, and more particularly to an apparatus and a method for processing received signals in a handover of a Mobile Station (MS) in a BWA communication system using an Orthogonal Frequency Division Multiple Access (OFDMA) scheme. [0004] 2. Description of the Related Art [0005] Generally, a representative system of a wireless communication system includes a mobile communication system using a cellular communication scheme. Such a mobile communication system uses a multiple access scheme in order to simultaneou...

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Benefits of technology

[0015] It is another object of the present invention is to provide an apparatus and a method for signal processing for efficiently transmitting and receiving data in a handover in a BWA communication system.

Problems solved by technology

However, codes, which are resources in the CDMA scheme, have reached a limit in use thereof, such that it becomes more and more difficult to transmit multimedia data.

However, using the hard handover may cause interruption of signals.

Although the interruption of signals occurs during a very short time period, it may be disadvantageous in the BWA communication system targeting stable transmission / reception of high-speed data.

However, a detailed scheme for the soft handover has not yet been proposed for the BWA communication system.

Therefore, the complexity of the MS receiving and processing the signals from the BSs increases and system management for handover cannot be efficiently performed.

Consequently, when the soft handover is performed, data transmission / reception is not efficiently performed.

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